package com.travelzen._8.polymorphic.rtti;

public class RTTI {
	public static void main(String[] args) {
		Useful[] x = {new Useful(),new MoreUseful()};
		x[0].f();
		x[1].g();
		((MoreUseful)x[1]).u();
		((MoreUseful)x[0]).u();
	}
}
